IEC 61753-053-2:2014 contains the minimum initial test and measurement requirements and severities which non-connectorized single-mode fibre electrically controlled variable optical attenuator needs to satisfy in order to be categorised as meeting the requirements of category C-Controlled environments, as defined in Annex A of IEC 61753-1:2007. Keywords: non-connectorized single-mode fibre electrically controlled variable optical attenuator, category C-Controlled environments
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